pub fn fft2d<F: Bm3dFloat>(
input: ArrayView2<'_, F>,
fft_row_plan: &Arc<dyn Fft<F>>,
fft_col_plan: &Arc<dyn Fft<F>>,
) -> Array2<Complex<F>>Expand description
Compute 2D FFT of a square patch using pre-computed plans. Returns unnormalized FFT.